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A027254
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Sum{T(n,k)*T(n,k+2), 0<=k<=n-2, T given by A026703.
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0
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1, 10, 62, 384, 1999, 11214, 55349, 298990, 1442299, 7649710, 36470860, 191481848, 906843279, 4732185974, 22320602389, 116024453570, 545848582951
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